Method for the CO2 laser beam wavefront control

M. Sawczak; G. Rabczuk

doi:10.1117/12.726660

1 February 2007 Method for the CO₂ laser beam wavefront control

M. Sawczak, G. Rabczuk

Proceedings Volume 6599, Laser Technology VIII: Progress in Lasers; 65990M (2007) https://doi.org/10.1117/12.726660
Event: Laser Technology VIII, 2006, Szczecin, Poland

Abstract

The results of experimental tests concerning the wavefront sensor designed for control of the cw CO₂ laser beam transformed by the deformable multichannel bimorph mirror are presented in the paper. Wave-front curvature sensing is realised by measuring the radiation intensity distribution in the defocused beam and comparing it with the distribution recorded for a reference, undisturbed beam. The characteristics of the sensor are analysed versus the controlled deformation introduced to the tested beam by a deformable mirror. The experimental tests show that the curvature signal, measured by the designed array detector is proportional to the local distortions of the wavefront of the laser beam.

Citation Download Citation

M. Sawczak and G. Rabczuk "Method for the CO₂ laser beam wavefront control", Proc. SPIE 6599, Laser Technology VIII: Progress in Lasers, 65990M (1 February 2007); https://doi.org/10.1117/12.726660

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